Quite a fun little game. It's got a spooky ghoul and an impact font meme - what else could I possibly want? I could imagine a lot of ways this could be developed further. There's a battle going on in the background, maybe some of the soldiers who show up aren't quite dead, or maybe there's stray projectiles for you to worry about. But still, what you have here was fun.
Interestingly, I didn't get the bug the other commenters mentioned, running the game in Firefox on Linux. Might be platform-specific or have something else weird going on.